Kenwood Th-K2at/e, K2e/t, K4at, K4e Transceiver Instruction Manual

							67
MEMORY CHANNEL LOCKOUT
You can lock out memory channels that you prefer not
to monitor during All-Channel Memory Scan {page 63}.
1Press [MR] to enter Memory Recall Mode.
2Turn the Tuning control to select the memory
channel to be locked out.
3Press [MENU].
4Turn the Tuning control and select Menu No. 12
(L.OUT).
5Press [MENU] and turn the Tuning control to select
ÒONÓ.
Memory channel number
6Press [MENU] to store the setting.
7Press any key other than [LAMP] and [MONI/SQL]
to exit the Menu Mode.
¥A ÒÓ icon appears below the memory channel
number, indicating the channel is locked out.
8To unlock the memory channel, repeat steps 1 ~ 7,
selecting ÒOFFÓ in step 5.
¥ The ÒÓ icon disappears.
Note:
uThe Program Scan memories (L0/U0 ~ L2/U2), Priority Channel
(Pr) and Weather Radio frequency (AL) cannot be locked out.
uEven if a memory channel is locked out, you can perform Call Scan{page 64} between the Call Channel and the memory channel. 
						

							68
SCAN RESUME METHOD
The transceiver stops scanning at the frequency (or
memory channel) where a signal is detected.  It then
continues or stops scanning according to which Resume
Mode you have selected.
¥ Time-Operated Mode (default)
The transceiver remains on a busy frequency (or
memory channel) for approximately 5 seconds, then
continues to scan even if the signal is still present.
¥ Carrier-Operated Mode
The transceiver remains on a busy frequency (or
memory channel) until the signal drops out.  There is
a 2-second delay between signal dropout and scan
resumption.
¥ Seek Mode
The transceiver moves to a frequency or memory
channel where a signal is present and stops.
To change the scan resume method:
1Press [MENU].
2Turn the Tuning control to select Menu No. 11 (SCAN).
3Press [MENU].
4Turn the Tuning control to select ÒTOÓ (Time-Operated),
ÒCOÓ (Carrier-Operated), or ÒSEÓ (Seek) Mode.
5Press [MENU] to store the new setting.  Otherwise,
press [PTT] to cancel. 
						

							69
SELECTIVE CALL
CTCSS AND DCS
You may sometimes want to hear calls from only
specific persons or groups.  In this case, use the
Selective Call.  This transceiver is equipped with
CTCSS (Continuous Tone Coded Squelch System) and
DCS (Digital Coded Squelch).  These Selective Calls
allow you to ignore (not hear) unwanted calls from other
persons who are using the same frequency.  The
transceiver unmutes only when it receives a signal
having the same CTCSS tone or DCS code.
Note:  CTCSS and DCS do not cause your conversation to be
private or scrambled.  It only relieves you from listening to unwanted
conversations.
CTCSS
A CTCSS tone is a sub-audible tone and is selectable
from among the 42 tone frequencies listed in the table
on the page 71.  The list includes 37 EIA standard tones
and 5 non-standard tones.
Using CTCSS
1Press [MENU] and turn the Tuning control to select
Menu No. 2 (T.CT.DCS).
2Press [MENU] and turn the Tuning control to select
ÒCTCSSÓ. 
						

							70
¥ As you turn the Tuning control, the selection cycles as
follows:  ÒOFFÓ Þ ÒTONEÓ Þ ÒCTCSSÓ Þ ÒDCSÓ  Þ ÒOFFÓ.
3Press [MENU].
¥ ÒCTÓ appears on the upper part of display, indicating
that the CTCSS function is activated.
4Press any key other than [MENU], [MONI/SQL], and
[LAMP] to exit Menu Mode.
When CTCSS is ON, you will hear calls only when the
selected CTCSS tone is received.  To answer the call,
press and hold [PTT], then speak into the microphone.
Note:
uYou cannot use the CTCSS and Tone/ DCS functions
simultaneously.  Switching the CTCSS function ON after having
activated the Tone/ DCS functions deactivates the Tone/ DCS
functions.
uIf you select a high CTCSS frequency, receiving audio or noise
that contains the same frequency portions may cause CTCSS to
function incorrectly.  To prevent noise from causing this problem,
select an appropriate squelch level {page 18}.
uWhile transmitting the 1750 Hz tone by pressing [CALL]{page 35}, the transceiver does not transmit the CTCSS tone.
Selecting a CTCSS Frequency
1Press [MENU] and turn the Tuning control to select
Menu No. 4 (CT).
¥ The current CTCSS frequency appears.
2Press [MENU] and turn the Tuning control to select
your desired CTCSS frequency.
¥ The selectable CTCSS frequencies are the same as
those for the Tone frequency.  Refer to the table on the
following page for the available CTCSS frequencies. 
						

							71
3Press [MENU] to store the new setting or [PTT] to
cancel.
Note:  To use the selected CTCSS tone, you must turn the CTCSSfunction ON {page 69}.
Available CTCSS Tone Frequencies
) z H ( y c n e u q e r F e n o T
0 . 7 65. 2 80. 0 0 10. 3 2 14. 1 5 12. 6 8 17. 5 2 2
3 . 9 64. 5 85. 3 0 13. 7 2 17. 6 5 18. 2 9 11. 9 2 2
9 . 1 75. 8 82. 7 0 18. 1 3 12. 2 6 15. 3 0 26. 3 3 2
4 . 4 75. 1 99. 0 1 15. 6 3 19. 7 6 15. 6 0 28. 1 4 2
0 . 7 78. 4 98. 4 1 13. 1 4 18. 3 7 17. 0 1 23. 0 5 2
7 . 9 74. 7 98. 8 1 12. 6 4 19. 9 7 11. 8 1 21. 4 5 2 
						

							72
CTCSS Freq. ID Scan
This function scans through all CTCSS frequencies to
identify the incoming CTCSS frequency on the received
signal.  You may find this useful when you cannot recall
the CTCSS frequency that the other persons in your
group are using.
1Press [MENU] and turn the Tuning control to select
Menu No. 4 (CT).
2Press [MENU] (1 s) to start the CTCSS Freq. ID
Scan.
¥ While scanning, the decimal point of CTCSS frequency
blinks.
¥ To reverse the scan direction, turn the Tuning control.
¥ To quit the function, press [PTT].
¥When a CTCSS frequency is identified, the identified
frequency appears and blinks.
3Press [MENU] to program the identified frequency in
place of the current CTCSS frequency.  Otherwise,
press [PTT] to exit the CTCSS FREQ. ID Scan.
¥ Turn the Tuning control while the identified frequency
is blinking to resume scanning.
Note:
uReceived signals are monitored through the speaker while
scanning is in progress.
uCTCSS Freq. ID Scan does not scan the tone if a signal is notdetected. 
						

							73
DCS
DCS is similar to CTCSS.  However, instead of using an
analog audio tone, it uses a continuous sub-audible
digital waveform that represents a 3-digit octal number.
You can select a DCS code from among the 104 DCS
codes listed in the table on the next page.
Using DCS
1Press [MENU] and turn the Tuning control to select
Menu No. 2 (T.CT.DCS).
2Press [MENU] and turn the Tuning control to select
ÒDCSÓ.
¥ As you turn the Tuning control, the selection cycles as
follows:  ÒOFFÓ Þ ÒTONEÓ Þ ÒCTCSSÓ Þ ÒDCSÓ  Þ ÒOFFÓ.
3Press [MENU].
¥ ÒDCSÓ appears on the display, indicating that the DCS
function is activated.
4Press any key other than [MENU], [MONI/SQL], and
[LAMP] to exit the Menu Mode.
When DCS is ON, you will hear calls only when the
selected DCS code is received.  To answer the call, press
and hold [PTT], then speak into the microphone.
Note:  You cannot use the DCS function and CTCSS/ Tone functions
simultaneously.  Switching the DCS function ON after having
activated the CTCSS/ Tone functions deactivate the CTCSS/ Tone
functions. 
						

							74
Selecting a DCS Code
1While in DCS Mode, press [MENU] and turn the
Tuning control to select Menu No. 5 (DCS).
¥ The current DCS code appears.
2Press [MENU] and turn the Tuning control to select
your desired DCS code.
¥ The available DCS codes are shown in the following
table.
3 2 056 023 150 255 213 331 456 421 613 7
5 2 017 043 121 216 223 332 466 442 623 7
6 2 027 034 132 236 234 313 430 572 643 7
1 3 037 054 152 256 264 323 460 513 634 7
2 3 047 025 162 266 215 354 461 523 645 7
6 3 041 155 134 217 265 364 432 545 6
3 4 051 165 144 247 246 325 462 526 6
7 4 061 126 154 260 356 345 423 546 6
1 5 022 156 164 211 317 355 464 530 7
3 5 052 127 115 251 311 426 456 521 7
4 5 013 147 125 252 321 446 460 632 7
3Press [MENU] to store the new code or [PTT] to
cancel. 
						

							75
DCS Code ID Scan
This function scans through all DCS codes to identify
the incoming DCS code on the received signal.  You
may find this useful when you cannot recall the DCS
code that the other persons in your group are using.
1Press [MENU] and turn the Tuning control to select
Menu No. 5 (DCS).
2Press [MENU] (1 s) to start the DCS Code ID Scan
function.
¥ While scanning, the decimal point between ÒDCSÓ and
the DCS code blinks.
¥ To reverse the scan direction, turn the Tuning control.
¥ To quit the function, press [PTT].
¥When a DCS code is identified, the identified DCS
code appears and blinks.
3Press [MENU] to program the identified DCS code in
place of the current DCS code.  Otherwise, press
[PTT] to exit the DCS Code ID Scan.
¥ Turn the Tuning control while the identified DCS code
is blinking to resume scanning.
Note:
uReceived signals are monitored through the speaker while
scanning is in progress.
uDCS Code ID Scan does not scan the code if a signal is notdetected. 
						

							76
DTMF FUNCTIONS
This transceiver provides you with 10 dedicated DTMF
memory channels.  You can store a DTMF number (16
digits max.) in each of these channel to recall later for
speed dialing.
Many repeaters in the U.S.A. and Canada offer a
service called Autopatch.  You can access the public
telephone network via such a repeater by sending
DTMF tones.  For further information, consult your local
repeater reference.
MANUAL DIALING (TH-K2AT/ ET/ K4AT ONLY)
The numeric keypad functions as a DTMF keypad; the
12 keys found on a touch-tone phone plus 4 additional
keys (A, B, C, D) on the rightmost column.
To perform Manual Dialing, follow the steps below.
1Press and hold [PTT] to transmit.
2While transmitting, press the keys in sequence on
the keypad, to send the DTMF tones.
¥ The corresponding DTMF tones are transmitted and
monitored through the speaker.
. q e r F
) z H (9 0 2 16 3 3 17 7 4 13 3 6 1
7 9 6123A
0 7 7456B
2 5 8789C
1 4 90#D